Digging tooth



FIG. 1 is a rear, right side perspective view of a digging tooth showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a sectional view taken along line 3—3 of FIG. 2; and,

FIG. 4 is a sectional view taken along line 4—4 of FIG. 2.

The phantom lines shown in the drawings forming no part of the present invention. 

The ornamental design for a digging tooth, as shown and described. 